Electronic device including interposer

ABSTRACT

An electronic device including an interposer is provided. The electronic device includes a first circuit board having a first connection terminal formed thereon, an application processor (AP) connected to the first connection terminal and deployed on the first circuit board, an interposer having a via formed therein and having a first surface attached to the first circuit board, the interposer at least partly surrounding at least a partial region of the first circuit board and a first end portion of the via being electrically connected to the first connection terminal, a second circuit board having a second connection terminal formed thereon and attached to a second surface of the interposer in an opposite direction to the first surface, the second connection terminal being electrically connected to a second end portion of the via and the second circuit board forming an inner space together with the first circuit board and the interposer, a communication processor (CP) connected to the second connection terminal and deployed on the second circuit board, and an antenna electrically connected to the CP.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application is a continuation application of prior application Ser.No. 16/121,085, filed on Sep. 4, 2018, which application is based on andclaims priority under 35 U.S.C. § 119(a) of a Korean patent applicationnumber 10-2017-0116517, filed on Sep. 12, 2017, in the KoreanIntellectual Property Office, the disclosure of which is incorporated byreference herein in its entirety.

BACKGROUND 1. Field of the Invention

The disclosure relates to an electronic device including an interposer.More particularly, the disclosure relates to an electronic deviceincluding an interposer, which can reduce an area of a printed circuitboard (PCB) by inserting the interposer, in which a space for mountingvia and components therein is formed, between a first circuit board anda second circuit board and by laminating the first circuit board and thesecond circuit board, and can secure a battery extension space of theelectronic device as large as the reduced area of the PCB.

2. Description of the Related Art

An electronic device, such as a portable terminal, is required to beminiaturized and to have multiple functions. For this, the electronicdevice includes a printed circuit board (PCB) on which variouscomponents are mounted (e.g., PCB, printed board assembly (PBA), andflexible printed circuit board (FPCB)).

The PCB may include a processor, a memory, a camera, a broadcastreceiver module, and a communication module, which are necessary in theelectronic device (e.g., a smart phone). The PCB may include circuitinterconnects for connecting a plurality of electronic componentsmounted thereon.

The above information is presented as background information only toassist with an understanding of the disclosure. No determination hasbeen made, and no assertion is made, as to whether any of the abovemight be applicable as prior art with regard to the disclosure.

SUMMARY

In order to lengthen the usage time of the electronic device, it isrequired to increase the capacity of a battery.

If the printed circuit board (PCB) built in the electronic device isformed in a single layer, it may be difficult to secure a space forextending the capacity of the battery.

In order to increase the battery capacity of the electronic device, itis required to reduce the area of the built-in PCB, and to secure abattery extension space.

Aspects of the disclosure are to address at least the above-mentionedproblems and/or disadvantages and to provide at least the advantagesdescribed below. Accordingly, an aspect of the disclosure is to providean electronic device including an interposer, which can reduce an areaof a PCB by inserting the interposer, in which a space for mounting viaand components therein is formed, between a first circuit board and asecond circuit board and by laminating the first circuit board and thesecond circuit board, and can secure a battery extension space of theelectronic device as large as the reduced area of the PCB.

Additional aspects will be set forth in part in the description whichfollows and, in part, will be apparent from the description, or may belearned by practice of the presented embodiments.

In accordance with an aspect of the disclosure, an electronic device isprovided. The electronic device includes a first circuit board having afirst connection terminal formed thereon, an application processor (AP)connected to the first connection terminal and deployed on the firstcircuit board, an interposer having a via formed therein and having afirst surface attached to the first circuit board, the interposer atleast partly surrounding at least a partial region of the first circuitboard and a first end portion of the via being electrically connected tothe first connection terminal, a second circuit board having a secondconnection terminal formed thereon and attached to a second surface ofthe interposer in an opposite direction to the first surface, the secondconnection terminal being electrically connected to a second end portionof the via and the second circuit board forming an inner space togetherwith the first circuit board and the interposer, a communicationprocessor (CP) connected to the second connection terminal and deployedon the second circuit board, and an antenna electrically connected tothe CP.

In accordance with another aspect of the disclosure, an electronicdevice is provided. The electronic device includes a first circuit boardhaving a first connection terminal formed thereon, a first electroniccomponent connected to the first connection terminal and deployed on thefirst circuit board, an interposer having a via formed therein andhaving a first surface attached to the first circuit board, theinterposer at least partly surrounding at least a partial region of thefirst circuit board and a first end portion of the via beingelectrically connected to the first connection terminal, a secondcircuit board having a second connection terminal formed thereon andattached to a second surface of the interposer in an opposite directionto the first surface, the second connection terminal being electricallyconnected to a second end portion of the via and the second circuitboard forming an inner space together with the first circuit board andthe interposer, a second electronic component connected to the secondconnection terminal and deployed on the second circuit board, and anantenna electrically connected to the second electronic component.

In accordance with another aspect of the disclosure, an electronicdevice is provided. The electronic device includes a first circuit boardhaving a first connection terminal formed thereon, a first electroniccomponent connected to the first connection terminal and deployed on thefirst circuit board, an interposer having a plating member and a viaformed on a side surface thereof and having a first surface attached tothe first circuit board, the interposer at least partly surrounding atleast a partial region of the first circuit board and a first endportion of the via being electrically connected to the first connectionterminal, a second circuit board having a second connection terminalformed thereon and attached to a second surface of the interposer in anopposite direction to the first surface, the second connection terminalbeing electrically connected to a second end portion of the via and thesecond circuit board forming an inner space together with the firstcircuit board and the interposer, a second electronic componentconnected to the second connection terminal and deployed on the secondcircuit board, and an antenna electrically connected to the secondelectronic component.

According to the various aspects of the disclosure, since the interposerin which the space for mounting the via and components therein is formedis inserted between the first circuit board and the second circuit boardand the first circuit board and the second circuit board are laminated,the area of the PCB can be reduced, and the battery extension space ofthe electronic device can be secured as large as the reduced area of thePCB.

Other aspects, advantages, and salient features of the disclosure willbecome apparent to those skilled in the art from the following detaileddescription, which, taken in conjunction with the annexed drawings,discloses various embodiments of the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features, and advantages of certainembodiments of the disclosure will be more apparent from the followingdescription taken in conjunction with the accompanying drawings, inwhich:

FIG. 1 is a block diagram illustrating an electronic device in a networkenvironment according to various embodiments of the disclosure;

FIG. 2 is an exploded perspective view of partial configurations of anelectronic device according to various embodiments of the disclosure;

FIG. 3 is a combined view of partial configurations of an electronicdevice according to various embodiments of the disclosure;

FIG. 4 is a perspective view schematically illustrating a connectionrelationship among first to third circuit boards of an electronic deviceaccording to various embodiments of disclosure;

FIG. 5 is a side view schematically illustrating a connectionrelationship among first to third circuit boards of an electronic deviceaccording to various embodiments of the disclosure;

FIG. 6 is a diagram illustrating a configuration of first to thirdcircuit boards of an electronic device and a connection relationshipamong them according to various embodiments of the disclosure;

FIG. 7 is a view illustrating a configuration of first and secondcircuit boards of an electronic device according to various embodimentsof the disclosure;

FIG. 8 is a view illustrating a configuration of first and secondcircuit boards of an electronic device according to various embodimentsof the disclosure;

FIG. 9 is a perspective view schematically illustrating a connectionrelationship between first and second circuit boards of an electronicdevice according to various embodiments of the disclosure;

FIG. 10 is a side view schematically illustrating a connectionrelationship between first and second circuit boards of an electronicdevice according to various embodiments of the disclosure;

FIGS. 11 and 12 are views illustrating embodiments of an interposer ofan electronic device according to various embodiments of the disclosure;

FIG. 13 is a view illustrating a via and an interposer of an electronicdevice according to various embodiments of the disclosure;

FIG. 14 is a view illustrating a via and an interposer of an electronicdevice according to various embodiments of the disclosure;

FIG. 15 is a view illustrating a via and an interposer of an electronicdevice according to various embodiments of the disclosure;

FIG. 16 is a view illustrating a configuration of an interposer of anelectronic device according to various embodiments of the disclosure;

FIG. 17 is a view illustrating a configuration of an interposer of anelectronic device according to various embodiments of the disclosure;

FIG. 18 is a view illustrating a configuration of an interposer of anelectronic device according to various embodiments of the disclosure;

FIG. 19 is a view illustrating a configuration of an interposer, a via,and a side plating member of an electronic device according to variousembodiments of the disclosure;

FIGS. 20A, 20B, and 20C illustrate a configuration of a via, aninterposer, and a first circuit board of an electronic device accordingto various embodiments of the disclosure;

FIGS. 21A, 21B, and 21C illustrate a configuration of a via, aninterposer, and a first circuit board of an electronic device accordingto various embodiments of the disclosure;

FIG. 22 is a side view illustrating a configuration of an interposer anda side plating member of an electronic device according to variousembodiments of the disclosure; and

FIG. 23 is a view illustrating a configuration of a via of an electronicdevice according to various embodiments of the disclosure.

Throughout the drawings, like reference numerals will be understood torefer to like parts, components, and structures.

DETAILED DESCRIPTION

The following description with reference to the accompanying drawings isprovided to assist in a comprehensive understanding of variousembodiments of the disclosure as defined by the claims and theirequivalents. It includes various specific details to assist in thatunderstanding but these are to be regarded as merely exemplary.Accordingly, those of ordinary skill in the art will recognize thatvarious changes and modifications of the various embodiments describedherein can be made without departing from the scope and spirit of thedisclosure. In addition, descriptions of well-known functions andconstructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are notlimited to the bibliographical meanings, but, are merely used by theinventor to enable a clear and consistent understanding of thedisclosure. Accordingly, it should be apparent to those skilled in theart that the following description of various embodiments of thedisclosure is provided for illustration purpose only and not for thepurpose of limiting the disclosure as defined by the appended claims andtheir equivalents.

It is to be understood that the singular forms “a,” “an,” and “the”include plural referents unless the context clearly dictates otherwise.Thus, for example, reference to “a component surface” includes referenceto one or more of such surfaces.

By the term “substantially” it is meant that the recited characteristic,parameter, or value need not be achieved exactly, but that deviations orvariations, including for example, tolerances, measurement error,measurement accuracy limitations and other factors known to those ofskill in the art, may occur in amounts that do not preclude the effectthe characteristic was intended to provide.

FIG. 1 is a block diagram illustrating an electronic device in a networkenvironment according to various embodiments of the disclosure.

Referring to FIG. 1, an electronic device 101 in a network environment100 may communicate with an electronic device 102 via a first network198 (e.g., a short-range wireless communication network), or anelectronic device 104 or a server 108 via a second network 199 (e.g., along-range wireless communication network). According to an embodimentof the disclosure, the electronic device 101 may communicate with theelectronic device 104 via the server 108. According to an embodiment ofthe disclosure, the electronic device 101 may include a processor 120,memory 130, an input device 150, a sound output device 155, a displaydevice 160, an audio module 170, a sensor module 176, an interface 177,a haptic module 179, a camera module 180, a power management module 188,a battery 189, a communication module 190, a subscriber identificationmodule (SIM) 196, or an antenna module 197. In some embodiments of thedisclosure, at least one (e.g., the display device 160 or the cameramodule 180) of the components may be omitted from the electronic device101, or one or more other components may be added in the electronicdevice 101. In some embodiments of the disclosure, some of thecomponents may be implemented as single integrated circuitry. Forexample, the sensor module 176 (e.g., a fingerprint sensor, an irissensor, or an illuminance sensor) may be implemented as embedded in thedisplay device 160 (e.g., a display).

The processor 120 may execute, for example, software (e.g., a program140) to control at least one other component (e.g., a hardware orsoftware component) of the electronic device 101 coupled with theprocessor 120, and may perform various data processing or computation.According to an embodiment of the disclosure, as at least part of thedata processing or computation, the processor 120 may load a command ordata received from another component (e.g., the sensor module 176 or thecommunication module 190) in a volatile memory 132, process the commandor the data stored in the volatile memory 132, and store resulting datain non-volatile memory 134. According to an embodiment of thedisclosure, the processor 120 may include a main processor 121 (e.g., acentral processing unit (CPU) or an application processor (AP)), and anauxiliary processor 123 (e.g., a graphics processing unit (GPU), animage signal processor (ISP), a sensor hub processor, or a communicationprocessor (CP)) that is operable independently from, or in conjunctionwith, the main processor 121. Additionally or alternatively, theauxiliary processor 123 may be adapted to consume less power than themain processor 121, or to be specific to a specified function. Theauxiliary processor 123 may be implemented as separate from, or as partof the main processor 121.

The auxiliary processor 123 may control at least some of functions orstates related to at least one component (e.g., the display device 160,the sensor module 176, or the communication module 190) among thecomponents of the electronic device 101, instead of the main processor121 while the main processor 121 is in an inactive state (e.g., a sleepstate), or together with the main processor 121 while the main processor121 is in an active state (e.g., executing an application). According toan embodiment of the disclosure, the auxiliary processor 123 (e.g., anISP or a CP) may be implemented as part of another component (e.g., thecamera module 180 or the communication module 190) functionally relatedto the auxiliary processor 123.

The memory 130 may store various data used by at least one component(e.g., the processor 120 or the sensor module 176) of the electronicdevice 101. The various data may include, for example, software (e.g.,the program 140) and input data or output data for a command relatedthereto. The memory 130 may include the volatile memory 132 or thenon-volatile memory 134.

The program 140 may be stored in the memory 130 as software, and mayinclude, for example, an operating system (OS) 142, middleware 144, oran application 146.

The input device 150 may receive a command or data to be used by anothercomponent (e.g., the processor 120) of the electronic device 101, fromthe outside (e.g., a user) of the electronic device 101. The inputdevice 150 may include, for example, a microphone, a mouse, or akeyboard.

The sound output device 155 may output sound signals to the outside ofthe electronic device 101. The sound output device 155 may include, forexample, a speaker or a receiver. The speaker may be used for generalpurposes, such as playing multimedia or playing record, and the receivermay be used for incoming calls. According to an embodiment of thedisclosure, the receiver may be implemented as separate from, or as partof the speaker.

The display device 160 may visually provide information to the outside(e.g., a user) of the electronic device 101. The display device 160 mayinclude, for example, a display, a hologram device, or a projector andcontrol circuitry to control a corresponding one of the display,hologram device, and projector. According to an embodiment of thedisclosure, the display device 160 may include touch circuitry adaptedto detect a touch, or sensor circuitry (e.g., a pressure sensor) adaptedto measure the intensity of force incurred by the touch.

The audio module 170 may convert a sound into an electrical signal andvice versa. According to an embodiment of the disclosure, the audiomodule 170 may obtain the sound via the input device 150, or output thesound via the sound output device 155 or a headphone of an externalelectronic device (e.g., an electronic device 102) directly (e.g.,wiredly) or wirelessly coupled with the electronic device 101.

The sensor module 176 may detect an operational state (e.g., power ortemperature) of the electronic device 101 or an environmental state(e.g., a state of a user) external to the electronic device 101, andthen generate an electrical signal or data value corresponding to thedetected state. According to an embodiment of the disclosure, the sensormodule 176 may include, for example, a gesture sensor, a gyro sensor, anatmospheric pressure sensor, a magnetic sensor, an acceleration sensor,a grip sensor, a proximity sensor, a color sensor, an infrared (IR)sensor, a biometric sensor, a temperature sensor, a humidity sensor, oran illuminance sensor.

The interface 177 may support one or more specified protocols to be usedfor the electronic device 101 to be coupled with the external electronicdevice (e.g., the electronic device 102) directly (e.g., wiredly) orwirelessly. According to an embodiment of the disclosure, the interface177 may include, for example, a high definition multimedia interface(HDMI), a universal serial bus (USB) interface, a secure digital (SD)card interface, or an audio interface.

A connecting terminal 178 may include a connector via which theelectronic device 101 may be physically connected with the externalelectronic device (e.g., the electronic device 102). According to anembodiment of the disclosure, the connecting terminal 178 may include,for example, a HDMI connector, a USB connector, a SD card connector, oran audio connector (e.g., a headphone connector).

The haptic module 179 may convert an electrical signal into a mechanicalstimulus (e.g., a vibration or a movement) or electrical stimulus whichmay be recognized by a user via his tactile sensation or kinestheticsensation. According to an embodiment of the disclosure, the hapticmodule 179 may include, for example, a motor, a piezoelectric element,or an electric stimulator.

The camera module 180 may capture a still image or moving images.According to an embodiment of the disclosure, the camera module 180 mayinclude one or more lenses, image sensors, ISPs, or flashes.

The power management module 188 may manage power supplied to theelectronic device 101. According to one embodiment of the disclosure,the power management module 188 may be implemented as at least part of,for example, a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of theelectronic device 101. According to an embodiment of the disclosure, thebattery 189 may include, for example, a primary cell which is notrechargeable, a secondary cell which is rechargeable, or a fuel cell.

The communication module 190 may support establishing a direct (e.g.,wired) communication channel or a wireless communication channel betweenthe electronic device 101 and the external electronic device (e.g., theelectronic device 102, the electronic device 104, or the server 108) andperforming communication via the established communication channel. Thecommunication module 190 may include one or more CPs that are operableindependently from the processor 120 (e.g., the AP) and supports adirect (e.g., wired) communication or a wireless communication.According to an embodiment of the disclosure, the communication module190 may include a wireless communication module 192 (e.g., a cellularcommunication module, a short-range wireless communication module, or aglobal navigation satellite system (GNSS) communication module) or awired communication module 194 (e.g., a local area network (LAN)communication module or a power line communication (PLC) module). Acorresponding one of these communication modules may communicate withthe external electronic device via the first network 198 (e.g., ashort-range communication network, such as Bluetooth™, wireless-fidelity(Wi-Fi) direct, or infrared data association (IrDA)) or the secondnetwork 199 (e.g., a long-range communication network, such as acellular network, the Internet, or a computer network (e.g., LAN or widearea network (WAN)). These various types of communication modules may beimplemented as a single component (e.g., a single chip), or may beimplemented as multi components (e.g., multi chips) separate from eachother. The wireless communication module 192 may identify andauthenticate the electronic device 101 in a communication network, suchas the first network 198 or the second network 199, using subscriberinformation (e.g., international mobile subscriber identity (IMSI))stored in the SIM 196.

The antenna module 197 may transmit or receive a signal or power to orfrom the outside (e.g., the external electronic device) of theelectronic device 101. According to an embodiment of the disclosure, theantenna module 197 may include one or more antennas, and, therefrom, atleast one antenna appropriate for a communication scheme used in thecommunication network, such as the first network 198 or the secondnetwork 199, may be selected, for example, by the communication module190 (e.g., the wireless communication module 192). The signal or thepower may then be transmitted or received between the communicationmodule 190 and the external electronic device via the selected at leastone antenna.

At least some of the above-described components may be coupled mutuallyand communicate signals (e.g., commands or data) therebetween via aninter-peripheral communication scheme (e.g., a bus, general purposeinput and output (GPIO), serial peripheral interface (SPI), or mobileindustry processor interface (MIPI)).

According to an embodiment of the disclosure, commands or data may betransmitted or received between the electronic device 101 and theexternal electronic device 104 via the server 108 coupled with thesecond network 199. Each of the electronic devices 102 and 104 may be adevice of a same type as, or a different type, from the electronicdevice 101. According to an embodiment of the disclosure, all or some ofoperations to be executed at the electronic device 101 may be executedat one or more of the external electronic devices 102, 104, or 108. Forexample, if the electronic device 101 should perform a function or aservice automatically, or in response to a request from a user oranother device, the electronic device 101, instead of, or in additionto, executing the function or the service, may request the one or moreexternal electronic devices to perform at least part of the function orthe service. The one or more external electronic devices receiving therequest may perform the at least part of the function or the servicerequested, or an additional function or an additional service related tothe request, and transfer an outcome of the performing to the electronicdevice 101. The electronic device 101 may provide the outcome, with orwithout further processing of the outcome, as at least part of a replyto the request. To that end, a cloud computing, distributed computing,or client-server computing technology may be used, for example.

The electronic device according to various embodiments may be one ofvarious types of electronic devices. The electronic devices may include,for example, a portable communication device (e.g., a smart phone), acomputer device, a portable multimedia device, a portable medicaldevice, a camera, a wearable device, or a home appliance. According toan embodiment of the disclosure, the electronic devices are not limitedto those described above.

It should be appreciated that various embodiments of the disclosure andthe terms used therein are not intended to limit the technologicalfeatures set forth herein to particular embodiments and include variouschanges, equivalents, or replacements for a corresponding embodiment.With regard to the description of the drawings, similar referencenumerals may be used to refer to similar or related elements. It is tobe understood that a singular form of a noun corresponding to an itemmay include one or more of the things, unless the relevant contextclearly indicates otherwise. As used herein, each of such phrases as “Aor B,” “at least one of A and B,” “at least one of A or B,” “A, B, orC,” “at least one of A, B, and C,” and “at least one of A, B, or C,” mayinclude all possible combinations of the items enumerated together in acorresponding one of the phrases. As used herein, such terms as “1st”and “2nd,” or “first” and “second” may be used to simply distinguish acorresponding component from another, and does not limit the componentsin other aspects (e.g., importance or order). It is to be understoodthat if an element (e.g., a first element) is referred to, with orwithout the term “operatively” or “communicatively”, as “coupled with,”“coupled to,” “connected with,” or “connected to” another element (e.g.,a second element), it means that the element may be coupled with theother element directly (e.g., wiredly), wirelessly, or via a thirdelement.

As used herein, the term “module” may include a unit implemented inhardware, software, or firmware, and may interchangeably be used withother terms, for example, “logic,” “logic block,” “part,” or“circuitry”. A module may be a single integral component, or a minimumunit or part thereof, adapted to perform one or more functions. Forexample, according to an embodiment of the disclosure, the module may beimplemented in a form of an application-specific integrated circuit(ASIC).

Various embodiments as set forth herein may be implemented as software(e.g., the program 140) including one or more instructions that arestored in a storage medium (e.g., an internal memory 136 or an externalmemory 138) that is readable by a machine (e.g., the electronic device101). For example, a processor (e.g., the processor 120) of the machine(e.g., the electronic device 101) may invoke at least one of the one ormore instructions stored in the storage medium, and execute it, with orwithout using one or more other components under the control of theprocessor. This allows the machine to be operated to perform at leastone function according to the at least one instruction invoked. The oneor more instructions may include a code generated by a complier or acode executable by an interpreter. The machine-readable storage mediummay be provided in the form of a non-transitory storage medium. Wherein,the term “non-transitory” simply means that the storage medium is atangible device, and does not include a signal (e.g., an electromagneticwave), but this term does not differentiate between where data issemi-permanently stored in the storage medium and where the data istemporarily stored in the storage medium.

Certain aspects of the disclosure can also be embodied as computerreadable code on a non-transitory computer readable recording medium. Anon-transitory computer readable recording medium is any data storagedevice that can store data which can be thereafter read by a computersystem. Examples of the non-transitory computer readable recordingmedium include a Read-Only Memory (ROM), a Random-Access Memory (RAM),Compact Disc-ROMs (CD-ROMs), magnetic tapes, floppy disks, and opticaldata storage devices. The non-transitory computer readable recordingmedium can also be distributed over network coupled computer systems sothat the computer readable code is stored and executed in a distributedfashion. In addition, functional programs, code, and code segments foraccomplishing the disclosure can be easily construed by programmersskilled in the art to which the disclosure pertains.

At this point it should be noted that the various embodiments of thedisclosure as described above typically involve the processing of inputdata and the generation of output data to some extent. This input dataprocessing and output data generation may be implemented in hardware orsoftware in combination with hardware. For example, specific electroniccomponents may be employed in a mobile device or similar or relatedcircuitry for implementing the functions associated with the variousembodiments of the disclosure as described above. Alternatively, one ormore processors operating in accordance with stored instructions mayimplement the functions associated with the various embodiments of thedisclosure as described above. If such is the case, it is within thescope of the disclosure that such instructions may be stored on one ormore non-transitory processor readable mediums. Examples of theprocessor readable mediums include a ROM, a RAM, CD-ROMs, magnetictapes, floppy disks, and optical data storage devices. The processorreadable mediums can also be distributed over network coupled computersystems so that the instructions are stored and executed in adistributed fashion. In addition, functional computer programs,instructions, and instruction segments for accomplishing the presentdisclosure can be easily construed by programmers skilled in the art towhich the present disclosure pertains.

According to various embodiments of the disclosure, each component(e.g., a module or a program) of the above-described components mayinclude a single entity or multiple entities. According to variousembodiments of the disclosure, one or more of the above-describedcomponents may be omitted, or one or more other components may be added.Alternatively or additionally, a plurality of components (e.g., modulesor programs) may be integrated into a single component. In such a case,according to various embodiments of the disclosure, the integratedcomponent may still perform one or more functions of each of theplurality of components in the same or similar manner as they areperformed by a corresponding one of the plurality of components beforethe integration. According to various embodiments of the disclosure,operations performed by the module, the program, or another componentmay be carried out sequentially, in parallel, repeatedly, orheuristically, or one or more of the operations may be executed in adifferent order or omitted, or one or more other operations may beadded.

FIG. 2 is an exploded perspective view of partial configurations of anelectronic device according to various embodiments of the disclosure,and FIG. 3 is a combined view of partial configurations of an electronicdevice according to various embodiments of the disclosure.

Referring to FIGS. 2 and 3, an electronic device 200 according tovarious embodiments of the disclosure may include a housing 201, a firstcircuit board 210, a second circuit board 220, an interposer 230, athird circuit board 240, a connector 250, a first battery 260, a secondbattery 262, an antenna module 270, and a back cover 280.

According to various embodiments of the disclosure, the electronicdevice 200 may include the electronic device (at least one of 101, 102,and 104) of FIG. 1. The first battery 260 and the second battery 262 mayinclude the battery 189 of FIG. 1. The antenna module 270 may includethe antenna module 197 of FIG. 1. The back cover 280 may be provided onthe back of the electronic device 101 of FIG. 1. Each of the firstcircuit board 210, the second circuit board 220, and the third circuitboard 240 may include at least one connection terminal (e.g., aconnector) for electrically connecting to other constituent elements.Each of the first circuit board 210, the second circuit board 220, andthe third circuit board 240 may include a printed circuit board (PCB), aprinted board assembly (PBA), and a flexible printed circuit board(FPCB).

The housing 201 may be configured in a side bezel structure toaccommodate the constituent elements of the electronic device 200 asdescribed above, such as the first circuit board 210, the second circuitboard 220, the interposer 230, the third circuit board 240, theconnector 250, the first battery 260, the second battery 262, theantenna module 270, and the back cover 280. At least a part of anexternal exposure surface of the housing 201 may be made of a conductivematerial (e.g., metal). At least a part of the external exposure surfaceof the housing 201 may be used as an antenna of the electronic device200.

According to an embodiment of the disclosure, the housing 201 mayinclude a support member (e.g., a bracket) 203 provided therein. Thesupport member 203 may accommodate therein and support constituentelements of the electronic device 200. The support member 203 may beintegrally formed on one surface of the housing 201. The support member203 may be formed of, for example, a metal material and/or a non-metalmaterial (e.g., polymer).

The first circuit board 210 may be deployed in at least a part of thehousing 201. The first circuit board 210 may include a processor (e.g.,the processor 120 of FIG. 1) required to operate the electronic device200, a memory (e.g., the memory 130 of FIG. 1), a communication circuit(e.g., the communication module 190 of FIG. 1), a power managementmodule (e.g., the power management module 188 of FIG. 1), and/or aninterface (e.g., the interface 177 of FIG. 1).

According to an embodiment of the disclosure, the processor (e.g., theprocessor 120 of FIG. 1) may include one or more of a CPU, an AP (e.g.,an AP 212 of FIG. 6), a call processor (e.g., a call processor 214 ofFIG. 6), a graphic processor, an ISP, a sensor hub processor, and a CP.The memory (e.g., the memory 130 of FIG. 1) may include, for example, avolatile memory or a non-volatile memory. The communication circuit(e.g., the communication module 190 of FIG. 1) may include, for example,a wireless communication module (e.g., the wireless communication module192 of FIG. 1) or a wired communication module (e.g., the wiredcommunication module 194 of FIG. 1). The interface (e.g., interface 177of FIG. 1) may include, for example, a HDMI, a USB interface, an SD cardinterface, and/or an audio interface. For example, the interface mayelectrically or physically connect the electronic device 200 to anexternal electronic device (e.g., the electronic device 102 of FIG. 1),and may include a USB connector, an SD card/MMC connector, or an audioconnector.

The second circuit board 220 may be laminated on the first circuit board210 through the interposer 230. The second circuit board 220 may includea transceiver (e.g., a transceiver 221 of FIG. 6) or a wirelesscommunication module (e.g., a Wi-Fi module) in which a (e.g., the callprocessor 214 of FIG. 6) and a transceiver are integrated.

The interposer 230 may be deployed between the first circuit board 210and the second circuit board 220. The interposer 230 may include a spaceS in which at least one component mounted on the second circuit board220 (e.g., the AP 212 of FIG. 6, call processor 214, transceiver 221,and Wi-Fi module) is deployed. The interposer 230 may include at leastone via 300 for electrically connecting the first circuit board 210 andthe second circuit board 220 to each other.

The third circuit board 240 may further include at least one antenna(e.g., an antenna 275 of FIG. 4) for transmitting/receiving a signal orpower to/from an outside or a connection terminal connected to theantenna.

The connector 250 may electrically connect the first circuit board 210,the second circuit board 220, and the third circuit board 240 to eachother.

The first battery 260 (e.g., the battery 189 of FIG. 1) may supply thepower to at least one constituent element of the electronic device 200.

The second battery 262 may supply the power to at least one constituentelement of the electronic device 200. The second battery 262 may be anauxiliary battery for increasing the capacity of the first battery 260.The second battery 262 may be deployed in a space secured by laminatingthe first circuit board 210 and the second circuit board 220 through theinterposer 230.

According to an embodiment of the disclosure, the second battery 262 maybe deployed between the second circuit board 220 and the third circuitboard 240. According to an embodiment of the disclosure, the connector250 may electrically connect the second circuit board 220 and the thirdcircuit board 240 to each other, and may be deployed on at least one ofan upper portion, a lower portion, and a side portion of the firstbattery 260 or the second battery 262.

According to an embodiment of the disclosure, the first battery 260 andthe second battery 262 may include, for example, a non-rechargeableprimary cell, a rechargeable secondary cell, or a fuel cell. The firstbattery 260 and the second battery 262 may be integrally deployed in thehousing 201 of the electronic device 200, or may be detachably deployedin the housing 201 of the electronic device 200. The first battery 260and the second battery 262 may be configured as one pack. The firstbattery 260 and the second battery 262 may include different fuel gaugesfor grasping the capacities thereof, or may use different chargers.Through this, the batteries having different sizes can be efficientlymanaged. The first battery 260 and the second battery 262 may beconfigured as one cell.

The antenna module 270 may be deployed between the third circuit board240 and the back cover 280. The antenna module 270 (e.g., the antennamodule 197 of FIG. 1) may be connected to the third circuit board 240.The antenna module 270 may include an antenna 275 illustrated in FIG. 4.The third circuit board 240 may include a connection terminal connectedto the antenna module 270.

According to an embodiment of the disclosure, the antenna module 270may, for example, communicate with an external device or wirelesslytransmit and receive the power necessary for charging. According toanother embodiment of the disclosure, an antenna structure may be formedby a partial exposure surface of the housing 201 and/or a part of thesupport member 203 or a combination thereof.

The back cover 280 may be a cover for protecting the back surface of theelectronic device 200 (e.g., the electronic device 101 of FIG. 1).

FIG. 4 is a perspective view schematically illustrating a connectionrelationship among first, second, and third circuit boards of anelectronic device according to various embodiments of the disclosure,and FIG. 5 is a side view schematically illustrating a connectionrelationship among first, second, and third circuit boards of anelectronic device according to various embodiments of the disclosure.

Referring to FIGS. 4 and 5, an electronic device 200 according tovarious embodiments of the disclosure may include a first circuit board210, a second circuit board 220, an interposer 230, and a third circuitboard 240.

A communication circuit (e.g., the communication module 190 of FIG. 1)may be deployed on the first circuit board 210. The communicationcircuit may include, for example, an AP (e.g., the AP 212 of FIG. 6) anda call processor (e.g., the call processor 214 of FIG. 6). A firstconnection terminal 310 electrically connected to an output of thecommunication circuit may be formed on a first surface (e.g., the upperportion) of the first circuit board 210.

The second circuit board 220 may include, for example, a transceiver(e.g., the transceiver 221 of FIG. 6) or a Wi-Fi module. A secondconnection terminal 320 may be deployed on a first surface (e.g., alower portion) of the second circuit board 220, and a third connectionterminal 330 may be deployed on a second surface (e.g., upper portion)of the second circuit board 220. The second connection terminal 320 maybe electrically connected (e.g., a digital signal) to components (e.g.,communication circuit) mounted on the second circuit board 220. Thethird connection terminal 330 may be electrically connected (e.g., ananalog signal) to a fourth connection terminal 340 formed on the thirdcircuit board 240. According to various embodiments of the disclosure,the third connection terminal 330 may be connected to the first circuitboard 210 through another connection terminal (e.g., a sixth connectionterminal (not illustrated)) excluding the first connection terminal 310formed on the first circuit board 210. According to various embodimentsof the disclosure, the third connection terminal 330 connected to theconnector 250 may be deployed on the first circuit board 210. Throughthis, in case of falling of the electronic device 200, the interposer230 can be prevented from being pressed and damaged after the back cover280 makes an impact on a head of the connector 250. The third connectionterminal 330 may be electrically connected to the first circuit board210 through another connection member excluding the first connectionterminal 310 formed on the first circuit board 210, and thus a signalcan be transferred from the second circuit board 220 to the firstcircuit board 210 through the interposer 230 without a loss. Accordingto an embodiment of the disclosure, for impedance matching, theinterposer 230 may have different permittivity from that of the firstcircuit board 210 and the second circuit board 220. According to anembodiment of the disclosure, the second connection terminal 320 of thesecond circuit board 220 may be electrically connected to a second endportion (e.g., an upper portion) of a via 300, and the second circuitboard 220 may be attached to a second surface (e.g., an upper surface)of the interposer 230 in an opposite direction to the a first surface(lower surface) of the interposer 230 so that the second circuit board220 forms an inner space S together with the first circuit board 210 andthe interposer 230.

The interposer 230 may be deployed between the first circuit board 210and the second circuit board 220. The interposer 230 may have a space Sin which at least one component mounted on the second circuit board 220(e.g., the AP 212 of FIG. 6, call processor 214, transceiver 221, andWi-Fi module) is deployed. The interposer 230 may be configured in arectangular shape or in other various shapes. The interposer 230 mayinclude at least one via 300 for electrically connecting the firstconnection terminal 310 formed on the first surface (e.g., an uppersurface) of the first circuit board 210 and the second connectionterminal 320 formed on the first surface (e.g., a lower surface) of thesecond circuit board 220 to each other. According to an embodiment ofthe disclosure, the first surface (e.g., a lower surface) of theinterposer 230 may be attached to the first circuit board 210 so thatthe interposer 230 at least partly surrounds at least a partial regionof the first circuit board 210 and the first end portion (e.g., a lowerportion) of the via 300 is electrically connected to the firstconnection terminal 310.

The fourth connection terminal 340 may be deployed on a first side ofthe third circuit board 240, and a fifth connection terminal 350 may bedeployed on a second side of the third circuit board 240. The fourthconnection terminal 340 and the fifth connection terminal 350 may beelectrically connected to each other. The fifth connection terminal 350formed on the third circuit board 240 may be electrically connected tothe antenna 275 (e.g., the antenna module 197 of FIG. 1).

According to various embodiments of the disclosure, although it isdescribed that the third connection terminal 330 is deployed on thesecond circuit board 220, the third connection terminal 330 may bedeployed on the first circuit board 210 as a sixth connection terminal(not illustrated). If the sixth connection terminal is deployed on thefirst circuit board 210, the sixth connection terminal may beelectrically connected to the fourth connection terminal 340 formed onthe third circuit board 240 through the connector 250. The connector 250may be a FPCB type, coaxial type, or connector type connection memberconnecting the circuit boards through blocking of a radio frequency (RF)signal.

The third connection terminal 330 formed on the second surface (e.g., anupper portion) of the second circuit board 220 and the fourth connectionterminal 340 formed on the first side of the third circuit board 240 maybe electrically connected to each other through the connector 250.According to various embodiments of the disclosure, the third connectionterminal 330 may not be limited to be formed on the second circuit board220. For example, the third connection terminal 330 may be deployed onthe first circuit board 210 so far as it can minimize a loss throughimpedance matching by changing the size and/or permittivity of the via300 formed on the interposer 230.

According to various embodiments of the disclosure, the first circuitboard 210 may extract raw data by decoding an in-phase signal and aquadrature signal received through a transceiver of the second circuitboard 220. The second circuit board 220 may separate a RF band and mayprocess analog data including a carrier frequency signal. The interposer230 may transfer a baseband signal that does not include the carrierfrequency signal to the first circuit board 210. The interposer 230 mayprocess a digital signal including the in-phase signal and thequadrature signal. The connector 250 may transfer an analog signal fromwhich the (RF band is separated to the fourth connection terminal 340 ofthe third circuit board 240 through the third connection terminal 330formed on the second circuit board 220. According to various embodimentsof the disclosure, the first circuit board 210 may transfer the digitalsignal related to the RF band to the second circuit board 220 throughthe interposer 230. In order to minimize a loss of the RF band, thesecond circuit board 220 may transfer the digital signal related to theRF band to the third circuit board 240, to which the antenna 275 isconnected, other than the first circuit board 210.

According to various embodiments of the disclosure, the analog signal,from which the RF band that is electrically connected to the antenna 275is separated, may be transferred to the first circuit board 210 throughthe interposer 230. For the impedance matching to minimize a loss of theanalog signal from which the RF band is separated, the permittivity ofthe interposer 230 or the size of the via 300 may be adjusted. In thiscase, the analog signal from the interposer 230 may be transferred tothe first circuit board 210. The transferred analog signal may betransferred to the fourth connection terminal of the third circuit board240 through another connection terminal on the first circuit board 210.

According to various embodiments of the disclosure, in order to transferthe analog signal from which the RF band is separated to the firstcircuit board 210 without a loss after the impedance matching of theanalog signal, the via 300 formed on the interposer 230 may be copiedinto the connector 250 to calculate the impedance. The impedancecalculation of the connector 250 is as in mathematical Equation 1 below.

$\begin{matrix}{Z_{0} = {\frac{138}{\sqrt{k}}\log\frac{d_{1}}{d_{2}}}} & {{Equation}\mspace{14mu} 1}\end{matrix}$

Z₀ denotes impedance, d1 denotes an inner diameter of a shield patternsurrounding the via 300, d2 denotes an outer diameter of the via 300,and k denotes relative permittivity.

For example, if the via 300 is pierced with 0.4 phi, the impedance Z₀ ofthe connector 250 may be 26.18Ω, whereas if the via 300 is pierced with0.2 phi, the impedance Z₀ of the connector 250 may be 46Ω (e.g., εr ofthe first circuit board 210 is εr=4.4, and d1 is an impedance value incase of 1 phi as compared with d2). In this case, the impedance Z₀ ofthe connector 250 may be controlled to approach 50Ω by changing thepermittivity in case where the via 300 is pierced with 0.4 phi.

FIG. 6 is a diagram illustrating a configuration of first to thirdcircuit boards of an electronic device and a connection relationshipamong them according to various embodiments of the disclosure.

Referring to FIG. 6, an electronic device 200 according to variousembodiments of the disclosure may include a first circuit board 210, asecond circuit board 220, an interposer 230, and a third circuit board240.

The first circuit board 210 may include, for example, an AP 212, and acall processor 214. The first circuit board 210 may include a firstconnection terminal 310 on a first surface thereof.

According to an embodiment of the disclosure, the AP 212 may controlfunctions of constituent elements (e.g., the processor 120, the memory130, the communication module 190, and the power management module 188of FIG. 1) required to operate the electronic device 200. The callprocessor 214 may modulate and demodulate a signal related to acommunication protocol of the electronic device 200.

The second circuit board 220 may include a transceiver 221, a firstfilter 222, a power amplifier 223, a switch 224, a second filter 225,and a low-noise amplifier 226. A second connection terminal 320 may bedeployed on a first surface of the second circuit board 220, and a thirdconnection terminal 330 may be deployed on a second surface of thesecond circuit board 220. The second connection terminal 320 and thethird connection terminal 330 may be electrically connected to eachother through another component.

According to an embodiment of the disclosure, the transceiver 221 maymix a signal modulated through the call processor 214 of the firstcircuit board 210 with a carrier frequency signal through a mixer totransmit (Tx) the mixed signal, or may separate the receive (Rx)demodulated signal from the carrier frequency signal to modulate theseparated signal. The first filter 222 may perform matching of thesignal transferred from the transceiver 221, or may perform filtering ofa noise signal from the carrier frequency signal. The power amplifier223 may amplify the transmit (Tx) signal filtered through the firstfilter 222 to increase a current gain of the signal. The switch 224 mayseparate paths of the transmit (Tx) signal and the receive (Rx) signalfrom each other. The second filter 225 may perform filtering of thenoise signal from the receive (Rx) signal transferred through the switch224. For example, the low-noise amplifier 226 may amplify the receive(Rx) signal transferred through the second filter 225, and may transferthe amplified signal to the transceiver 221.

The interposer 230 may be deployed between the first circuit board 210and the second circuit board 220. The interposer 230 may include the via300 for electrically connecting the first connection terminal 310 formedon the first surface of the first circuit board 210 and the secondconnection terminal 320 formed on the first surface of the secondcircuit board 220 to each other.

The third circuit board 240 may include a matching switch 242 controlledthrough the call processor 214 mounted on the first circuit board 210and a hall integrated circuit (IC) 244 controlled through the AP 212.According to various embodiments of the disclosure, a control signalprovided by the AP 212 and the CP 214 mounted on the first circuit board210 may be transferred to a separate connection member (e.g., aconnector FPCB) electrically connecting the first circuit board 210 andthe third circuit board 240 to each other. A fourth connection terminal340 may be deployed on a first side of the third circuit board 240, anda fifth connection terminal 350 may be deployed on a second side of thethird circuit board 240. The fourth connection terminal 340 and thefifth connection terminal 350 may be electrically connected to eachother. The fifth connection terminal 350 formed on the third circuitboard 240 may be electrically connected to the antenna 275.

According to an embodiment of the disclosure, the matching switch 242may adjust matching of ground (GND) or feeding of the antenna 275connected to the fifth connection terminal 350 of the third circuitboard 240. The hall IC 244 may recognize, for example, opening orclosing of a mobile terminal having a cover (e.g., a folder phone). Theantenna 275 may transmit and receive a transmit (Tx) signal and areceive (Rx) signal for a specific wavelength.

According to an embodiment of the disclosure, the third connectionterminal 330 formed on the second surface of the second circuit board220 and the fourth connection terminal 340 formed on the first side ofthe third circuit board 240 may be electrically connected to each otherthrough the connector 250.

FIG. 7 is a view illustrating a configuration of first and secondcircuit boards of an electronic device according to various embodimentsof the disclosure.

Referring to FIG. 7, an electronic device 200 according to variousembodiments of the disclosure may include a first circuit board 210, asecond circuit board 220, an interposer 230, a first shield member 410,and a second shield member 420.

On a lower portion of the first circuit board 210, for example, an AP212 may be mounted. The first shield member 410 may be deployed on anoutside of the AP 212 mounted on the lower portion of the first circuitboard 210. The first shield member 410 may block, for example, a noisesignal output from the first circuit board 210 of the electronic device200, and may block noise input from an outside of the electronic device200. The first shield member 410 may be a shield can or electromagneticinterference (EMI) molding member.

On an upper portion of the first circuit board 210, for example, the CP214 may be mounted. The CP 214 mounted on the upper portion of the firstcircuit board 210 may be deployed in a component mount space S in theinterposer 230. A first connection terminal 310 may be deployed on thefirst surface (e.g., an upper portion) of the first circuit board 210. Asecond connection terminal 320 may be deployed on the first surface(e.g., a lower portion) of the second circuit board 220.

According to an embodiment of the disclosure, the interposer 230 mayinclude a via 300, a first pad 302, a second pad 304, and a side platingmember 305.

The via 300 may electrically connect the first connection terminal 310formed on the first circuit board 210 and the second connection terminal320 formed on the second circuit board 220 to each other. The via 300may include a through via or a stacked via.

The first pad 302 may be formed on a lower portion of the via 300 andmay be electrically connected to the first connection terminal 310 ofthe first circuit board 210.

The second pad 304 may be formed on an upper portion of the via 300 andmay be electrically connected to the second connection terminal 320 ofthe second circuit board 220.

The side plating member 305 may be provided on an outside of the via300. The side plating member 305 may combine the first circuit board 210and the second circuit board 220 with each other (e.g., may beelectrically connected to the first circuit board 210 or the secondcircuit board 220), or may support them (may not be electricallyconnected to the first circuit board 210 or the second circuit board220). The side plating member 305 may be selectively used.

On an upper portion of the second circuit board 220, for example, atransceiver 221 may be mounted. The second shield member 420 may bedeployed on an outside of the transceiver 221 mounted on the upperportion of the second circuit board 220. The second shield member 420may block, for example, a noise signal output from the second circuitboard 220 of the electronic device 200, and may block noise input froman outside of the electronic device 200. The second shield member 420may be a shield can or EMI molding member.

According to an embodiment of the disclosure, the EMI molding members ofthe first shield member 410 and the second shield member 420 may berespectively combined with the first circuit board 210 and the secondcircuit board 220 through the following process.

In a first process, a pad for shield may be formed on at least a part ofthe lower portion of the first circuit board 210 and on at least a partof the upper portion of the second circuit board 220.

In a second process, the first shield member 410 and the second shieldmember 420 may be mounted on the pad for shield formed on at least thepart of the lower portion of the first circuit board 210 and on at leastthe part of the upper portion of the second circuit board 220.

In a third process, after the first shield member 410 and the secondshield member 420 are mounted through the second process, non-conductivemolding liquid (e.g., epoxy molding compound (EMC)) may be spread.

In a fourth process, the non-conductive molding liquid spread around thepad for shield on which the first shield member 410 and the secondshield member 420 are mounted may be etched through laser.

In a fifth process, sputtering of a conductive metal may be performedwith respect to the pad for shield and the non-conductive moldingliquid.

FIG. 8 is a view illustrating a configuration of first and secondcircuit boards of an electronic device according to various embodimentsof the disclosure.

Referring to FIG. 8, an electronic device 200 according to variousembodiments of the disclosure may include a first circuit board 210, asecond circuit board 220, an interposer 230, a first shield member 410,a TIM 412, a heat dissipation member 414, a copper sheet 416, and asecond shield member 420.

On a lower portion of the first circuit board 210, for example, an AP212 may be mounted. The first shield member 410 may be deployed on anoutside of the AP 212 mounted on the lower portion of the first circuitboard 210. The first shield member 410 may block, for example, a noisesignal output from the first circuit board 210 of the electronic device200, and may block noise input from an outside of the electronic device200. The first shield member 410 may be a shield can or EMI moldingmember.

According to an embodiment of the disclosure, at least a part of thefirst shield member 410 may be opened. A first end of the thermalinterface material (TIM) 412 may be deployed adjacent to the AP 212, anda second end thereof may be provided to penetrate the open part of thefirst shield member 410. The TIM 412 may serve to transfer heatgenerated from the call processor 214 of the electronic device 200 tothe heat dissipation member 414. For example, the TIM 412 may be made ofa material having a large heat transfer coefficient. The copper sheet416 may be provided between the first end and the second end of the TIM412. The copper sheet 416 may close the open part of the first shieldmember 410. The copper sheet 416 may block the noise generated insidethe electronic device 200. The heat dissipation member 414 may bedeployed on a support member (e.g., a bracket) 203. The heat dissipationmember 414 may transfer the heat transferred through the TIM 412 to thesupport member 203, and may dissipate the heat to outside through thesupport member 203.

On an upper portion of the first circuit board 210, for example, thecall processor 214 may be mounted. The call processor 214 mounted on theupper portion of the first circuit board 210 may be deployed in acomponent mount space S in the interposer 230. A first connectionterminal 310 may be deployed on the first surface (e.g., an upperportion) of the first circuit board 210. A second connection terminal320 may be deployed on the first surface (e.g., a lower portion) of thesecond circuit board 220.

According to an embodiment of the disclosure, the interposer 230 mayinclude a via 300, a first pad 302, a second pad 304, and a side platingmember 305.

The via 300 may electrically connect the first connection terminal 310formed on the first circuit board 210 and the second connection terminal320 formed on the second circuit board 220 to each other. The via 300may include a through via or a stacked via.

The first pad 302 may be formed on a lower portion of the via 300 andmay be electrically connected to the first connection terminal 310 ofthe first circuit board 210.

The second pad 304 may be formed on an upper portion of the via 300 andmay be electrically connected to the second connection terminal 320 ofthe second circuit board 220.

The side plating member 305 may be provided on an outside of the via300. The side plating member 305 may combine the first circuit board 210and the second circuit board 220 with each other, or may support them.The side plating member 305 may be selectively used.

On an upper portion of the second circuit board 220, for example, atransceiver 221 may be mounted. The second shield member 420 may bedeployed on an outside of the transceiver 221 mounted on the upperportion of the second circuit board 220. The second shield member 420may block, for example, a noise signal output from the second circuitboard 220 of the electronic device 200, and may block noise input froman outside of the electronic device 200. The second shield member 420may be a shield can or EMI molding member.

FIG. 9 is a perspective view schematically illustrating a connectionrelationship between first and second circuit boards of an electronicdevice according to various embodiments of the disclosure, and FIG. 10is a side view schematically illustrating a connection relationshipbetween first and second circuit boards of an electronic deviceaccording to various embodiments of the disclosure.

Referring to FIGS. 9 and 10, an electronic device 200 according tovarious embodiments of the disclosure may include a first circuit board210, a second circuit board 220, and an interposer 230.

A communication circuit (e.g., 5G RF module) may be deployed on thefirst circuit board 210. A first connection terminal 310 electricallyconnected to an output of the communication circuit may be formed on afirst surface (e.g., an upper portion) of the first circuit board 210.

On an upper portion of the second circuit board 220, for example, anarray antenna 285 (e.g., an antenna module 197 of FIG. 1) may bearranged. A second connection terminal 320 may be deployed on a firstsurface (e.g., a lower portion) of the second circuit board 220. Thearray antenna 285 and the second connection terminal 320 may beelectrically connected to each other. In order to lower the height ofthe electronic device 200, electronic components may be mounted only onone surface of the second circuit board 220. According to an embodimentof the disclosure, a third connection terminal (e.g., a third connectionterminal 330 of FIG. 4) or a c clip that can electrically connectanother antenna element may be deployed on a second surface (e.g., anupper portion) of the second circuit board 220.

According to various embodiments of the disclosure, the array antenna285 may be at least one antenna patterned on the second circuit board220 or a connection member connected to the antenna (e.g., the antenna275 of FIG. 4). For example, as illustrated in FIG. 4, a third circuitboard 240 to which the antenna 275 is connected may not be provided.

The interposer 230 may be deployed between the first circuit board 210and the second circuit board 220. The interposer 230 may have a space Sin which at least one component (e.g., 5G RF module) mounted on thefirst circuit board 210 is deployed. The interposer 230 may beconfigured in a rectangular shape or in other various shapes. Theinterposer 230 may include at least one via 300 for electricallyconnecting the first connection terminal 310 formed on the first surface(e.g., an upper surface) of the first circuit board 210 and the secondconnection terminal 320 formed on the first surface (e.g., a lowersurface) of the second circuit board 220 to each other.

According to an embodiment of the disclosure, as illustrated in FIGS. 9and 10, the electronic device 200 according to various embodiments ofthe disclosure may be configured to be able to perform 3D beamforming.For example, in order to implement the 5G RF array antenna, the secondcircuit board 220 may include the array antenna 285. Further, theinterposer 230 may include at least one side plating member 305 providedon the side surface thereof. The side plating member 305 may beconnected to the array antenna 285. The side plating member 305 mayoperate as a part of the array antenna 285. The side plating member 305may cover three surfaces (e.g., upper, side, and back surfaces) of theinterposer 230. The side plating member 305 may be in a “

” shape.

According to various embodiments of the disclosure, as illustrated inFIGS. 9 and 10, the electronic device 200 according to variousembodiments of the disclosure may be configured to transfer an RF signalto the third circuit board 240 through the third connection terminal(e.g., the third connection terminal 330 of FIG. 4) after mounting aWi-Fi module on the second circuit board 220, or to directly connect theantenna (e.g., the antenna 275 of FIG. 4) through an antenna connectionterminal (fifth connection terminal 350 of FIG. 4 or c clip) formed onthe second circuit board 220 without transferring the RF signal to thethird circuit board 240. For example, the AP 212 mounted on the firstcircuit board 210 may transfer a digital signal for controlling theWi-Fi module mounted on the second circuit board 220 to the secondcircuit board 220 through the via 300 of the interposer 230, and theWi-Fi module on the second circuit board 220 may modulate the digitalsignal and may directly transfer the RF signal through the antenna 275that is not the third circuit board 240 through the antenna connectionterminal (fifth connection terminal 350 of FIG. 4 or c clip).

FIGS. 11 and 12 are views illustrating embodiments of an interposer ofan electronic device according to various embodiments of the disclosure.

Referring to FIG. 11, an interposer 230 of an electronic device 200according to various embodiments of the disclosure may be composed of afirst portion 231 having vias 300 formed thereon, a second portion 232,a third portion 233, and a fourth portion 234, which are integrallyconnected to each other. Even if the interposer 230 is configured invarious different shapes, all portions constituting the interposer 230may be integrally connected to each other. The interposer 230 mayinclude a space S in which at least one component (e.g., the AP 212,call processor 214, or transceiver 221) mounted on the second circuitboard 220 is deployed.

Referring to FIG. 12, an electronic device 200 according to variousembodiments of the disclosure may be provided with at least oneinterposer 230. According to an embodiment of the disclosure, theinterposer 230 may include a first portion (e.g., first interposer) 231having vias 300 formed thereon, a second portion (e.g., firstinterposer) 232, a third portion (e.g., first interposer) 233, and afourth portion (e.g., first interposer) 234, which can be separated fromeach other through first to fourth slits s1 to s4. For example, thefirst portion 231 and the second portion 232 may be separated from eachother by the first slit s1. The second portion 232 and the third portion233 may be separated from each other by the second slit s2. The thirdportion 233 and the fourth portion 234 may be separated from each otherby the third slit s3. The fourth portion 234 and the first portion 231may be separated from each other by the fourth slit s4. Even if theinterposer 230 is configured in various different shapes, all portionsconstituting the interposer 230 may be configured to be separated fromeach other. According to an embodiment of the disclosure, the first tofourth slits s1 to s4 may be configured enough to prevent inflow of anoise signal from outside. For example, the first to fourth slits s1 tos4 may be configured at an interval that is smaller than the electricalwavelength of the noise signal from the outside. According to anembodiment of the disclosure, in order to block the inflow of the noisesignal through the first to fourth slits s1 to s4, the interposer 230may further include a shield member for shielding partial components inan inner space S. The shield member may be a shield can or EMI moldingmember.

FIG. 13 is a view illustrating a via and an interposer of an electronicdevice according to various embodiments of the disclosure.

Referring to FIG. 13, a via 300 of an electronic device 200 according tovarious embodiments of the disclosure may be composed of a through via.The via (e.g., through via) 300 may include a hole 301, a plating pad303, and an insulation region 306.

The hole 301 may be formed to penetrate, for example, at least a part ofan interposer 230 through a drill. An inner wall of the hole 301 may beplated to transfer an electrical signal.

The plating pad 303 (e.g., the first pad 302 or second pad 304 of FIG.7) may be formed to surround an outer side of the hole 301. The platingpad 303 may be composed of a copper film and a gold film. The gold filmmay correspond to gold plating performed to prevent corrosion of thecopper film.

The insulation region 306 may be formed to surround an outer side of theplating pad 303. The insulation region 306 may be, for example, a regionin which the copper film is opened so that the plating pad 303 of thevia 300 is not connected to another signal (e.g., a ground region 235)of the interposer 230. Only solder resist (SR) ink may be spread on theregion in which the copper film is open.

Referring to FIG. 13, the interposer 230 of the electronic device 200according to various embodiments of the disclosure may include a groundregion 235, a first keep-out region 236, and a second keep-out region237.

The ground region 235 may surround or may be electrically connected toat least a part (e.g., the insulation region 306) of the via 300. Theground region 235 may be composed of a copper film and SR ink. The SRink may be ink spread to prevent corrosion of the copper film.

The first keep-out region 236 may be formed on the first side of theground region 235. The second keep-out region 237 may be formed on thesecond side of the ground region 235. For example, the first keep-outregion 236 and the second keep-out region 237 may be formed on bothsides of the ground region 235. The first keep-out region 236 or thesecond keep-out region 237 may be a region in which an interconnectformed based on an error that is necessary for routing to cut an outlineof the interposer 230 in a desired shape does not exist.

FIG. 14 is a view illustrating a via and an interposer of an electronicdevice according to various embodiments of the disclosure.

Referring to FIG. 14, a via 300 of an electronic device 200 according tovarious embodiments of the disclosure may be composed of a tacked via.The via (e.g., stacked via) 300 may include an inner via 307, a platingpad 303, and an insulation region 306.

The inner via 307 may be formed to be smaller than the plating pad 303(e.g., the first pad 302 or second pad 304 of FIG. 7) for high-speedsignal movement.

The plating pad 303 may surround an outer side of the inner via 307. Theplating pad 303 may close an end portion of the inner via 307. Theplating pad 303 may be composed of a copper film and a gold film. Thegold film may correspond to gold plating performed to prevent corrosionof the copper film.

The insulation region 306 may be formed to surround an outer side of theplating pad 303. The insulation region 306 may be, for example, a regionin which the copper film is opened so that the plating pad 303 of thevia 300 is not connected to another signal (e.g., the ground region 235)of the interposer 230. Only SR ink may be spread on the region in whichthe copper film is open.

Referring to FIG. 14, the interposer 230 of the electronic device 200according to various embodiments of the disclosure may include a groundregion 235, a first keep-out region 236, and a second keep-out region237. The interposer 230 illustrated in FIG. 14 may have the sameconfiguration as the configuration of the interposer 230 illustrated inFIG. 13.

FIG. 15 is a view illustrating a via and an interposer of an electronicdevice according to various embodiments of the disclosure.

Referring to FIG. 15, a via 300 of an electronic device 200 according tovarious embodiments of the disclosure may be composed of a through via.The via (e.g., through via) 300 may include a hole 301, a plating pad303, and an insulation region 306.

The via 300 illustrated in FIG. 15 may have the same configuration asthe configuration of the via 300 illustrated in FIG. 13.

The interposer 230 illustrated in FIG. 15 may have the sameconfiguration as the configuration of the interposer 230 illustrated inFIG. 13.

The configuration illustrated in FIG. 15 is different from theconfiguration illustrated in FIG. 13 on the point that the ground region235 of the interposer 230 and the plating pad of the via 300 can beconnected to each other using an interconnect 309.

FIG. 16 is a view illustrating a configuration of an interposer of anelectronic device according to various embodiments of the disclosure.

Referring to FIG. 16, an interposer 230 of an electronic device 200according to various embodiments of the disclosure may be configured sothat a part (e.g., an inner side) of a ground region 235 is removed, andthe width of the interposer 230 is reduced as much as the removed groundregion 235.

FIG. 17 is a view illustrating a configuration of an interposer of anelectronic device according to various embodiments of the disclosure.

Referring to FIG. 17, an interposer 230 of an electronic device 200according to various embodiments of the disclosure may include differentvias (e.g., stacked via and through via) 300. The interposer 230 may beconfigured so that a part (e.g., an outer side) of a ground region 235is removed, and a side plating member 305 is deployed in the removedregion and a first keep-out region 236. The side plating member 305 maycover three surfaces (e.g., upper, side, and back surfaces) of theinterposer 230. The side plating member 305 may be in a “

” shape. According to another embodiment of the disclosure, theinterposer 230 may be configured so that a part (e.g., an inner side) ofthe ground region 235 is removed, and the side plating member 305 isdeployed in the removed region and a second keep-out region 237. Thefirst and second keep-out regions 236 and 237 may be regions in which aninterconnect formed based on an error that is necessary for routing tocut an outline of the interposer 230 in a desired shape does not exist.Accordingly, after the routing, the side plating member 305 is formed inthe first and second keep-out regions 236 and 237 through a separateaddition process (e.g., drilling, copper plating, and gold plating inthe first and second keep-out regions 236 and 237 of the side surface ofthe interposer 230 after the routing), and thus the existing unusedspace can be utilized. Through this, the width of the interposer 230 canbe reduced as large as a part of the width of the removed ground region235.

According to an embodiment of the disclosure, the side plating membersdeployed on the outer side and the inner side of the interposer 230 maybe deployed in parallel locations or may be deployed to cross each otherin a zigzag shape.

According to an embodiment of the disclosure, the side plating member305 may be integrally connected to the via 300. For example, the sideplating member 305 may be connected to the via 300 through theinterconnect 309. The side plating member 305 may be connected to thearray antenna 285 illustrated in FIG. 9 and may operate as a part of theantenna. According to an embodiment of the disclosure, the side platingmember 305 may be connected to the ground region 235 through anextension part extending from the ground region 235. The side platingmember 305 connected to the via 300 and the ground region 235 may serveas a shield member blocking noise input from an outside of theelectronic device 200.

FIG. 18 is a view illustrating a configuration of an interposer of anelectronic device according to various embodiments of the disclosure.

Referring to FIG. 18, an interposer 230 of an electronic device 200according to various embodiments of the disclosure may include differentvias (e.g., through via and stacked via) 300. As compared with theabove-described interposers in FIGS. 13 to 15, the interposer 230illustrated in FIG. 18 may be configured so that a ground region 235surrounding the via 300 is not formed. Through this, the width of theinterposer 230 can be reduced as large as the removed ground region 235.

According to an embodiment of the disclosure, if a signal of theelectronic device 200 is at low speed or a margin of an impedance signalis wide, or if the height of the interposer 230 is low and thusimpedance mismatch is within an error range, the ground region 235 canbe deleted. If the ground region 235 is not formed in the interposer230, the interposer 230 may be made of a shield can or EMI moldingmaterial that is a shield structure.

According to an embodiment of the disclosure, if the ground region 235is not formed in the interposer 230, components deployed in an innerspace of the interposer 230 or outside the interposer 230 may beshielded through shield can or EMI molding that is a shield structure,and may replace the noise shielding of the removed ground region 235.

FIG. 19 is a view illustrating a configuration of an interposer, a via,and a side plating member of an electronic device according to variousembodiments of the disclosure.

Referring to FIG. 19, an interposer 230 of an electronic device 200according to various embodiments of the disclosure may include differentvias (e.g., through via and stacked via) deployed in a zigzag shape.According to an embodiment of the disclosure, the interposer 230 mayhave the different vias (e.g., through via and stacked via) deployed ina straight line. According to an embodiment of the disclosure, theinterposer 230 may have the same vias (e.g., through vias or stackedvias) deployed in a zigzag shape. According to an embodiment of thedisclosure, the interposer 230 may have the same vias (e.g., throughvias or stacked vias) deployed in a straight line.

According to various embodiments of the disclosure, a plurality of sideplating members 305 may be deployed in a zigzag shape in the interposer230. For example, the side plating member 305 formed on an outer side ofthe interposer 230 may block inflow of a noise signal from an outside ofthe electronic device 200. The side plating member 305 formed on aninner side of the interposer 230 may block a noise signal output fromthe inside of the electronic device 200 (e.g., the first circuit board210 and/or second circuit board 220). Through this, the via 300 can bemoved adjacent to the first and second keep-out regions 236 and 237, andthus the width of the interposer 230 can be reduced. Further, since anopposite space occurring through the movement of the via 300 is securedas a space in which the side plating member 305 can be generated, it canalso serve to shield the inner and outer portions of the interposer 230as well as reducing the width of the interposer 230.

FIGS. 20A to 20C illustrate a configuration of a via, an interposer, anda first circuit board of an electronic device according to variousembodiments of the disclosure.

FIG. 20A is a cross-sectional view of a via formed in an interposeraccording to various embodiments of the disclosure, and FIG. 20B is across-sectional view illustrating the configuration of a thirdconduction pad formed on a first circuit board (or second circuit board)according to various embodiments of the disclosure. FIG. 20C is a planview illustrating the configuration of a third conduction pad formed ona first circuit board (or second circuit board) according to variousembodiments of the disclosure.

Referring to FIG. 20A, an interposer 230 according to variousembodiments of the disclosure may include a via (e.g., through via ofFIG. 13) 300. The via 300 may include a hole 301, a first pad 302, and asecond pad 304.

The hole 301 may be formed to penetrate, for example, at least a part ofthe interposer 230 through a drill.

The first pad 302 (e.g., first pad 302 of FIG. 7) and the second pad 304(e.g., second pad 304 of FIG. 7) may be formed to surround an outer sideof the hole 301. The first pad 302 may be exposed through a lowerportion of the interposer 230. The second pad 304 may be exposed throughan upper portion of the interposer 230. The first pad 302 and the secondpad 304 may be composed of a copper film and a gold film. According toan embodiment of the disclosure, the first pad 302 may be electricallyconnected to a first connection terminal 310 deployed on a first circuitboard 210. The second pad 304 may be electrically connected to a secondconnection terminal 320 deployed on a second circuit board 220.

Referring to FIGS. 20B and 20C, on an upper portion of the first circuitboard 210 according to various embodiments of the disclosure, a thirdpad 215 may be deployed to strengthen connectivity with the first pad302 of the via 300 formed in the interposer 230. The third pad 215 maybe deployed in a location corresponding to the first pad 302 of the via300.

According to an embodiment of the disclosure, a non-plating region 216may be included inside the third pad 215 deployed on the first circuitboard 210. The non-plating region 216 may be deployed in a locationcorresponding to the hole 301 of the via 300. The area of thenon-plating region 216 may be equal to or larger than the area of thehole 301 so that soldering liquid spread on the third pad 315 isprevented from flowing into the hole 301 of the via 300 duringapplication of surface mount devices (SMD) or surface mount technology(SMT), which is the surface mount technology for connecting the firstpad 302 of the interposer 230 and the third pad 215 of the first circuitboard 210 to each other. According to an embodiment of the disclosure,the third pad 215 deployed on the first circuit board 210 may also bedeployed on the second circuit board 220.

FIGS. 21A to 21C illustrate a configuration of a via, an interposer, anda first circuit board of an electronic device according to variousembodiments of the disclosure.

FIG. 21A is a cross-sectional view of a via formed in an interposeraccording to various embodiments of the disclosure, and FIG. 21B is across-sectional view illustrating the configuration of a thirdconduction pad formed on a first circuit board (or second circuit board)according to various embodiments of the disclosure. FIG. 21C is a planview illustrating the configuration of a third conduction pad formed ona first circuit board (or second circuit board) according to variousembodiments of the disclosure.

Referring to FIG. 21A, an interposer 230 according to variousembodiments of the disclosure may include a via (e.g., stacked via ofFIG. 14) 300. The via 300 may include an inner via 307, a first pad 302,and a second pad 304.

The inner via 307 may be formed to be smaller than the first pad 302and/or the second pad 304 for high-speed signal movement.

The first pad 302 (e.g., first pad 302 of FIG. 7) and the second pad 304(e.g., second pad 304 of FIG. 7) may close an upper portion and a lowerportion of the inner via 307. The first pad 302 may be exposed through alower portion of the interposer 230. The second pad 304 may be exposedthrough an upper portion of the interposer 230. The first pad 302 andthe second pad 304 may be composed of a copper film and a gold film.According to an embodiment of the disclosure, the first pad 302 may beelectrically connected to a first connection terminal 310 deployed on afirst circuit board 210. The second pad 304 may be electricallyconnected to a second connection terminal 320 deployed on a secondcircuit board 220.

Referring to FIGS. 21B and 21C, on an upper portion of the first circuitboard 210 according to various embodiments of the disclosure, a thirdpad 215 may be deployed to strengthen connectivity with the first pad302 of the via 300 formed in the interposer 230. The third pad 215 maybe deployed in a location corresponding to the first pad 302 of the via300. According to an embodiment of the disclosure, the third pad 215deployed on the first circuit board 210 may also be deployed on thesecond circuit board 220.

FIG. 22 is a side view illustrating a configuration of an interposer anda side plating member of an electronic device according to variousembodiments of the disclosure.

Referring to FIG. 22, a side plating member 305 according to variousembodiments of the disclosure may include a first surface (e.g., a lowersurface) 305 a, a second surface (e.g., a side surface) 305 b, and athird surface (e.g., an upper surface) 305 c. For example, the sideplating member 305 may cover three surfaces (e.g., upper, side, and backsurfaces) of the interposer 230. The side plating member 305 may be in a“

” shape.

According to an embodiment of the disclosure, the side plating member305 formed on the interposer 230 may block inflow of a noise signal froman outside of the electronic device 200. The side plating member 305 mayblock a noise signal output from the inside of the electronic device 200(e.g., the first circuit board 210 and/or second circuit board 220).According to an embodiment of the disclosure, the side plating member305 may be connected to the array antenna 285 illustrated in FIG. 9 andmay operate as a part of the antenna.

FIG. 23 is a view illustrating a configuration of a via of an electronicdevice according to various embodiments of the disclosure.

Referring to FIG. 23, an interposer 230 according to various embodimentsof the disclosure may include an inner via 307, an interconnect 309, anda plating pad 303. Unlike the via (e.g., stacked via) 300 illustrated inFIG. 14, the inner via 307 and the plating pad 303 may be formed indifferent regions of the interposer 230. In this case, the inner via 307and the plating pad 303 may be connected to each other using theinterconnect 309. The inner via 307 may be SR-processed so as not to beexposed to an outside, and may exist to be separated from the groundregion 235. Through this, in order to electrically connect the firstcircuit board 210 and the second circuit board 220 to each other,various types of interconnects may exist in the interposer 230 inaddition to the vias directly connected to each other in a straightline, and thus flexibility of the interconnects can be heightened.

While the disclosure has been shown and described with reference tovarious embodiments thereof, it will be understood by those skilled inthe art t art that various changes in form and details may be madetherein without departing from the spirit and scope of the disclosure asdefined by the appended claims and their equivalents.

What is claimed is:
 1. A portable communication device comprising: afirst printed circuit board (PCB); a second PCB disposed over or underthe first PCB; and an interposer disposed between the first PCB and thesecond PCB, the interposer comprising: a first surface facing the firstPCB, a second surface facing the second PCB, an insulating layerdisposed between the first surface and the second surface, a pluralityof signal paths disposed through the insulating layer and electricallyconnected with the first PCB and the second PCB, the plurality of signalpaths including a first signal path and a second signal path at leastpartially spaced apart from each other, and a ground member disposed onthe second surface, the ground member including a first ground portionand a second ground portion extended from the first ground portion, anend portion of the first signal path being exposed at the second surfacesurrounded by the first ground portion, an end portion of the secondsignal path being exposed at the second surface surrounded by the secondground portion, wherein the interposer further comprises another groundmember disposed on the second surface and electrically connected withthe ground member via a bridge portion.
 2. The portable communicationdevice of claim 1, wherein a width of the bridge portion is narrowerthan a width of the other ground member.
 3. The portable communicationdevice of claim 1, wherein the other ground member comprises asubstantially circular shape when viewed in a direction substantiallyperpendicular to the second surface.
 4. The portable communicationdevice of claim 1, wherein the end portion of the first signal path orthe end portion of the second signal path comprises a substantiallycircular shape when viewed in a direction substantially perpendicular tothe second surface.
 5. The portable communication device of claim 4,wherein the substantially circular shape comprises a fully-filled shapewithout any empty area formed therein.
 6. The portable communicationdevice of claim 1, wherein each of the first PCB and the second PCBincludes a first surface and a second surface, the second surface of thefirst PCB and the first surface of the second PCB facing the interposer,and wherein a first chip is mounted on the second surface of the firstPCB, and a second chip is mounted on the second surface of the secondPCB.
 7. The portable communication device of claim 6, wherein the firstchip comprises an application processor (AP).
 8. The portablecommunication device of claim 6, wherein the second chip comprises atransceiver.
 9. The portable communication device of claim 6, wherein athird chip is mounted on the first surface of the first PCB.
 10. Theportable communication device of claim 9, wherein the third chipcomprises a communication processor (CP).